EP0262058B1 - Dispositif rotatif à pales de mise en solution d'éléments d'alliage et de dispersion de gaz dans un bain d'aluminium - Google Patents

Dispositif rotatif à pales de mise en solution d'éléments d'alliage et de dispersion de gaz dans un bain d'aluminium Download PDF

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Publication number
EP0262058B1
EP0262058B1 EP87420245A EP87420245A EP0262058B1 EP 0262058 B1 EP0262058 B1 EP 0262058B1 EP 87420245 A EP87420245 A EP 87420245A EP 87420245 A EP87420245 A EP 87420245A EP 0262058 B1 EP0262058 B1 EP 0262058B1
Authority
EP
European Patent Office
Prior art keywords
disc
blades
bath
gas
duct
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP87420245A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0262058A1 (fr
Inventor
Gérard Hudault
Pierre Netter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rio Tinto France SAS
Original Assignee
Aluminium Pechiney SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aluminium Pechiney SA filed Critical Aluminium Pechiney SA
Priority to AT87420245T priority Critical patent/ATE47535T1/de
Publication of EP0262058A1 publication Critical patent/EP0262058A1/fr
Application granted granted Critical
Publication of EP0262058B1 publication Critical patent/EP0262058B1/fr
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/06—Obtaining aluminium refining
    • C22B21/064—Obtaining aluminium refining using inert or reactive gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
    • B01F23/23311—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a hollow stirrer axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
    • B01F23/23314—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a hollow stirrer element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
    • B01F27/1125—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades with vanes or blades extending parallel or oblique to the stirrer axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the present invention relates to a rotary device with blades for dissolving alloying elements and dispersing gas in an aluminum bath contained in a container.
  • alloys are generally obtained by incorporating these elements in solid form or solid particles in an aluminum bath and by dispersing them as best as possible using specific devices so that they dissolve as quickly as possible.
  • US Pat. No. 3,227,547 proposes a method in which a device is used which, according to FIG. 14, comprises a shaft pierced along its axis by a channel intended for the passage of a gas, one end of which is connected to a source of gas and a drive motor, the other end comprising a disc of the same axis as the shaft and which is provided on its side wall with blades slightly inclined relative to the vertical which elongate along the generatrices of a straight prism of parallelogrammatic section with an axis passing through the center of the disc, the ends of which result from the intersection of said prism with a cylinder of the same axis as that resting on the side walls of the disc and whose small faces are located in the planes of the upper and lower faces of the disc.
  • This disc is pierced in the center by an opening which puts the gas distributor channel in communication with the bath and provided on its underside with radial notches through which the gases flow towards openings placed on its side wall and located between the blades. It should be noted that, according to the direction of rotation of the disc, the blades have their front face downwards.
  • This means is a rotary device for dissolving alloying elements and dispersing gas in an aluminum bath originating in particular from a direct sample from an electrolysis tank contained in a container, such as a transport pocket, comprising a shaft pierced along its axis by a channel intended for the passage of gas, connected at one end to a gas source and to a drive motor and comprising at its second end intended to be immersed in the bath a disc with the same axis as the shaft, and which is provided on its lateral wall with blades which are elongated along the generatrices of a right prism of parallelogrammatic section with an axis passing through the center of the disc, the ends of which result from the intersection of said prism with a cylinder of the same axis as that resting on the side wall of the disc, and whose small faces (6) are located in the planes of the upper and lower faces of the disc, characterized in that the large blade faces form an alpha angle of at most 45 degrees with a plane perpendicular to the shaft (
  • FIG 1 there is a disc (3) rotating in the direction (9) provided with blades (4) which have a large face (5) and a small face (6). At the end of their axes are orifices (7) in connection with the channel (2) via the tubular passages (8).
  • Figure 2 the shaft (1) pierced by a channel (2) having at its lower part a disc (3) of height h provided with blades (4) of thickness e forming an angle a with the horizontal and of parallelogrammatic section constituted by the large faces (5) and the small faces (6) which are flush with the upper and lower planes of the disc.
  • the orifice (7) for the gas inlet.
  • the disc which plunges into the aluminum bath is driven by a motor, not shown, in the direction of the arrow and gas is admitted by a source not shown in the channel (2) while the elements of alloys escape from a hopper placed above the bath near the tree.
  • a motor not shown
  • gas is admitted by a source not shown in the channel (2) while the elements of alloys escape from a hopper placed above the bath near the tree.
  • the invention finds its application in particular in the rapid production of aluminum alloys with a low alkali content.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
EP87420245A 1986-09-22 1987-09-18 Dispositif rotatif à pales de mise en solution d'éléments d'alliage et de dispersion de gaz dans un bain d'aluminium Expired EP0262058B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87420245T ATE47535T1 (de) 1986-09-22 1987-09-18 Mit blaettern versehene, drehende vorrichtung zum aufloesen von legierungselementen und zur dispersion von gas in einem aluminiumbad.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8613362 1986-09-22
FR8613362A FR2604099B1 (fr) 1986-09-22 1986-09-22 Dispositif rotatif a pels de mise en solution d'elements d'alliage et de dispersion de gaz dans un bain d'aluminium

Publications (2)

Publication Number Publication Date
EP0262058A1 EP0262058A1 (fr) 1988-03-30
EP0262058B1 true EP0262058B1 (fr) 1989-10-25

Family

ID=9339239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87420245A Expired EP0262058B1 (fr) 1986-09-22 1987-09-18 Dispositif rotatif à pales de mise en solution d'éléments d'alliage et de dispersion de gaz dans un bain d'aluminium

Country Status (10)

Country Link
US (1) US4802656A (xx)
EP (1) EP0262058B1 (xx)
AT (1) ATE47535T1 (xx)
AU (1) AU586401B2 (xx)
DE (1) DE3760846D1 (xx)
ES (1) ES2011643B3 (xx)
FR (1) FR2604099B1 (xx)
GR (1) GR3000197T3 (xx)
NO (1) NO873935L (xx)
NZ (1) NZ221847A (xx)

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GB8804267D0 (en) * 1988-02-24 1988-03-23 Foseco Int Treating molten metal
US5085830A (en) * 1989-03-24 1992-02-04 Comalco Aluminum Limited Process for making aluminum-lithium alloys of high toughness
US5143357A (en) * 1990-11-19 1992-09-01 The Carborundum Company Melting metal particles and dispersing gas with vaned impeller
US5160693A (en) * 1991-09-26 1992-11-03 Eckert Charles E Impeller for treating molten metals
JP2544686Y2 (ja) * 1991-11-25 1997-08-20 株式会社ニフコ 線状物の留め具
US5308045A (en) * 1992-09-04 1994-05-03 Cooper Paul V Scrap melter impeller
US5397377A (en) * 1994-01-03 1995-03-14 Eckert; C. Edward Molten metal fluxing system
US5678807A (en) * 1995-06-13 1997-10-21 Cooper; Paul V. Rotary degasser
JP3520286B2 (ja) * 1996-07-16 2004-04-19 ペシネー・ジャポン株式会社 金属溶湯処理用回転式処浬ガス拡散装置
US5709834A (en) * 1996-09-11 1998-01-20 Lin; Yeun-Junn Device for removing gas and impurities from the molten aluminum
US5944496A (en) * 1996-12-03 1999-08-31 Cooper; Paul V. Molten metal pump with a flexible coupling and cement-free metal-transfer conduit connection
US5951243A (en) 1997-07-03 1999-09-14 Cooper; Paul V. Rotor bearing system for molten metal pumps
US6027685A (en) * 1997-10-15 2000-02-22 Cooper; Paul V. Flow-directing device for molten metal pump
US6093000A (en) 1998-08-11 2000-07-25 Cooper; Paul V Molten metal pump with monolithic rotor
US6199836B1 (en) 1998-11-24 2001-03-13 Blasch Precision Ceramics, Inc. Monolithic ceramic gas diffuser for injecting gas into a molten metal bath
US6303074B1 (en) 1999-05-14 2001-10-16 Paul V. Cooper Mixed flow rotor for molten metal pumping device
US6689310B1 (en) 2000-05-12 2004-02-10 Paul V. Cooper Molten metal degassing device and impellers therefor
US6723276B1 (en) * 2000-08-28 2004-04-20 Paul V. Cooper Scrap melter and impeller
US7731891B2 (en) * 2002-07-12 2010-06-08 Cooper Paul V Couplings for molten metal devices
US7402276B2 (en) 2003-07-14 2008-07-22 Cooper Paul V Pump with rotating inlet
US20050013715A1 (en) 2003-07-14 2005-01-20 Cooper Paul V. System for releasing gas into molten metal
US20070253807A1 (en) 2006-04-28 2007-11-01 Cooper Paul V Gas-transfer foot
US7470392B2 (en) * 2003-07-14 2008-12-30 Cooper Paul V Molten metal pump components
US7507367B2 (en) * 2002-07-12 2009-03-24 Cooper Paul V Protective coatings for molten metal devices
US7906068B2 (en) * 2003-07-14 2011-03-15 Cooper Paul V Support post system for molten metal pump
US7556766B2 (en) * 2005-11-15 2009-07-07 Alcoa Inc. Controlled free vortex scrap ingester and molten metal pump
US8613884B2 (en) 2007-06-21 2013-12-24 Paul V. Cooper Launder transfer insert and system
US9205490B2 (en) 2007-06-21 2015-12-08 Molten Metal Equipment Innovations, Llc Transfer well system and method for making same
US9409232B2 (en) 2007-06-21 2016-08-09 Molten Metal Equipment Innovations, Llc Molten metal transfer vessel and method of construction
US9643247B2 (en) 2007-06-21 2017-05-09 Molten Metal Equipment Innovations, Llc Molten metal transfer and degassing system
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US8337746B2 (en) 2007-06-21 2012-12-25 Cooper Paul V Transferring molten metal from one structure to another
US8366993B2 (en) 2007-06-21 2013-02-05 Cooper Paul V System and method for degassing molten metal
US9156087B2 (en) 2007-06-21 2015-10-13 Molten Metal Equipment Innovations, Llc Molten metal transfer system and rotor
US8524146B2 (en) 2009-08-07 2013-09-03 Paul V. Cooper Rotary degassers and components therefor
US8449814B2 (en) * 2009-08-07 2013-05-28 Paul V. Cooper Systems and methods for melting scrap metal
US8444911B2 (en) * 2009-08-07 2013-05-21 Paul V. Cooper Shaft and post tensioning device
US10428821B2 (en) * 2009-08-07 2019-10-01 Molten Metal Equipment Innovations, Llc Quick submergence molten metal pump
US8535603B2 (en) 2009-08-07 2013-09-17 Paul V. Cooper Rotary degasser and rotor therefor
US8714914B2 (en) 2009-09-08 2014-05-06 Paul V. Cooper Molten metal pump filter
US9108244B2 (en) 2009-09-09 2015-08-18 Paul V. Cooper Immersion heater for molten metal
US9903383B2 (en) 2013-03-13 2018-02-27 Molten Metal Equipment Innovations, Llc Molten metal rotor with hardened top
US9011761B2 (en) 2013-03-14 2015-04-21 Paul V. Cooper Ladle with transfer conduit
US10052688B2 (en) 2013-03-15 2018-08-21 Molten Metal Equipment Innovations, Llc Transfer pump launder system
USD742427S1 (en) 2013-09-27 2015-11-03 Rio Tinto Alcan International Limited Impeller for a rotary injector
AU2014328440B2 (en) 2013-09-27 2018-11-22 Rio Tinto Alcan International Limited Dual-function impeller for a rotary injector
US10138892B2 (en) 2014-07-02 2018-11-27 Molten Metal Equipment Innovations, Llc Rotor and rotor shaft for molten metal
US10947980B2 (en) 2015-02-02 2021-03-16 Molten Metal Equipment Innovations, Llc Molten metal rotor with hardened blade tips
CN105833785A (zh) * 2015-03-20 2016-08-10 共慧冶金设备科技(苏州)有限公司 一种螺旋搅拌装置及其应用设备
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CN105668619B (zh) * 2016-01-27 2017-05-24 柳州豪祥特科技有限公司 一种制备无水四氯化锡的方法
US11149747B2 (en) 2017-11-17 2021-10-19 Molten Metal Equipment Innovations, Llc Tensioned support post and other molten metal devices
FR3088432B1 (fr) * 2018-11-14 2020-12-11 Commissariat Energie Atomique Dispositif de caracterisation d'un materiau liquide
US11931802B2 (en) 2019-05-17 2024-03-19 Molten Metal Equipment Innovations, Llc Molten metal controlled flow launder
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FR2512067B1 (fr) * 1981-08-28 1986-02-07 Pechiney Aluminium Dispositif rotatif de dispersion de gaz pour le traitement d'un bain de metal liquide

Also Published As

Publication number Publication date
NZ221847A (en) 1990-04-26
AU7869787A (en) 1988-03-24
DE3760846D1 (en) 1989-11-30
EP0262058A1 (fr) 1988-03-30
US4802656A (en) 1989-02-07
NO873935D0 (no) 1987-09-21
ES2011643B3 (es) 1990-02-01
FR2604099A1 (fr) 1988-03-25
AU586401B2 (en) 1989-07-06
FR2604099B1 (fr) 1989-09-15
GR3000197T3 (en) 1990-12-31
NO873935L (no) 1988-03-23
ATE47535T1 (de) 1989-11-15

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